Answer:
Not exactly But you can take the slope of the curved portion and the slope of the flatline.
It wont do you much good since your working for absorbance but if you ever see something like a temperature change you can use the slope(s) to find freezing points/melting
Step-by-step explanation:
If you need to submit a slope you could use a best fit which is just point to point or you could break it up like i mentioned